Good to read here are users of this metod, I`ve been using it for the first time in my last refill, I heard and feel it smoother, I`ll do the 500ml next time, I used 350mm about, for 75 liters of fuel. Found another post talking abut it in diesel fuel forum, very crowded!
It is nothing old, old truck drivers use something similar, they use engine oil on every refill of diesel, for the pump and injectors to lub better, but is the firs time I read about 2Cycle oil, That is how it is name in english.
I`ll high the dose!